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CN100488782C - Security document and verification method - Google Patents

Security document and verification method Download PDF

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Publication number
CN100488782C
CN100488782C CNB028293770A CN02829377A CN100488782C CN 100488782 C CN100488782 C CN 100488782C CN B028293770 A CNB028293770 A CN B028293770A CN 02829377 A CN02829377 A CN 02829377A CN 100488782 C CN100488782 C CN 100488782C
Authority
CN
China
Prior art keywords
perforation
carrier
file
cross
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB028293770A
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Chinese (zh)
Other versions
CN1638975A (en
Inventor
I·D·冯费伦贝格
B·R·舍滕莱布
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orell Fuessli Sicherheitsdruck AG
Original Assignee
Orell Fuessli Sicherheitsdruck AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Orell Fuessli Sicherheitsdruck AG filed Critical Orell Fuessli Sicherheitsdruck AG
Publication of CN1638975A publication Critical patent/CN1638975A/en
Application granted granted Critical
Publication of CN100488782C publication Critical patent/CN100488782C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29—Securities; Bank notes
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/20—Testing patterns thereon
    • G07D7/202—Testing patterns thereon using pattern matching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/346—Perforations

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Credit Cards Or The Like (AREA)
  • Traffic Control Systems (AREA)

Abstract

A security document, such as a banknote or a cheque, is provided with a perforation pattern (5) having holes (5a, 5b) with elongate cross section. When viewing the perforation pattern (5) from a direction that is non-perpendicular to the surface of the document, different holes will have different optical transmission, which can be verified by eye or electronically. Perforation patterns (5) of this type are hard to forge and easy to verify.

Description

Secure file and verification method
Technical field
The present invention relates to the secure file of the perforation of a kind of method of authenticity of authenticating security documents and a kind of cross section with elongation.
Background technology
Thin perforation successfully has been used as the security feature of secure file, and promptly for for example bank money, passport or such files such as its part, check, its actual performance is verified by reliable mode.
WO97/18092 has described a kind of secure file with thin perforation pattern, they when transmission direction is watched as seen, then invisible when reflection direction is watched.Though having been found that these features is means of very reliable authentication document, still needs to increase these and the uniqueness of similarly boring a hole, so that higher identifiability and reliability to be provided.
WO00/43216 has instructed especially and has added the perforation that runs through file sideling, and they must be in a specific angle just as seen.But, make relatively difficulty of such inclined hole, and their performance can reduce along with time lapse, particularly when they are used for frequently standing the paper of mechanical stress or thin plastic sheet file (for example bank money).
Summary of the invention
Therefore, an object of the present invention is to provide the file of a kind of method and the above-mentioned type, it has further increased this reliability based on the security feature of boring a hole.
For realizing this purpose, according to an aspect of the present invention, a kind of method of authenticating documents authenticity is provided, wherein, described file comprises the carrier with a plurality of perforation, wherein, at least chadless has the cross section of elongation, this cross section has minimum and maximum gauge, it is characterized in that following step: watch file from the surperficial off plumb view direction of at least one and carrier, derive authenticity from the light transmittance of described perforation then, wherein said perforation runs through described carrier along the direction perpendicular to described surface.
According to a further aspect in the invention, a kind of secure file is provided, especially for the secure file of realizing the described method of aforementioned each claim, the security feature that it comprises carrier and has a plurality of perforation on described carrier, wherein, the cross section that has elongation to the described perforation of small part, this cross section has minimum and maximum gauge, it is characterized in that, this document comprises that at least two have the equal still perforation of variform cross section of area, and described file is run through perpendicular to the direction on a surface of carrier in described perforation edge.
Effect when the present invention has utilized the perforation of observing the cross section with elongation.When seeing such perforation with paper surface off plumb direction, transmission feature depends on the orientation of view direction with respect to the direction of the minimum of the cross section of perforation and maximum gauge.Therefore, watch file from above-mentioned direction, just can determine the authenticity of file by the light transmittance of seeing of perforation, for example, the light transmittance of seeing by contrast and the light transmittance of expection think that this document is invalid if the two does not conform to.
When watching perforation, even view direction and become big perpendicular to the angle between the direction of this document also can be watched bigger transmission perpendicular to the direction of minimum diameter of perforation.On the other hand, when when watching perforation perpendicular to the direction of maximum gauge of perforation, transmission is less.Therefore, these two view directions all are the preferred view directions that is used to verify.Preferably, use two view directions.
If file comprises a plurality of perforation with varying cross-section, to watch along the single of view direction and just can see perforation different directions, that have different expection printing opacity values, this has further increased the reliability of checking.
In order to obtain very strong visual effect, the minimum diameter of the perforation of elongation should be substantially equal to or less than the thickness of document carrier.
Description of drawings
With reference to following detailed description, the present invention may be better understood, also can understand other the purpose beyond the above-mentioned purpose.These are described with reference to accompanying drawing, wherein,
Fig. 1 shows the bank money with security perforation pattern;
Fig. 2 shows the security perforation pattern when closely watching;
Fig. 3 shows the details of Fig. 2 perforation pattern;
Fig. 4 is the cutaway view that Fig. 3 bores a hole;
Fig. 5 is the details of second kind of possibility perforation pattern;
Fig. 6 is the details of the third perforation pattern.
The specific embodiment
Fig. 1 shows a kind of bank money, and it comprises paper or plastic carrier 1, text element 2,3,4 and the security perforation pattern 5 that has conventional figure.
As shown in Figure 2, security perforation pattern 5 comprises a plurality of perforation (hole) 5a, 5b that run through carrier 1.Perforation is arranged with two-dimensional array.Preferably, they run through whole carrier 1, but they also can only partly pass carrier 1, as long as when watching perpendicular to the view direction on the surface of carrier 1, the light transmittance of perforation is bigger than the position of not punching.
The enlarged drawing of the perforation pattern 5 from Fig. 2 has used two kinds of dissimilar holes as can be seen.
The hole 5a and the 5b of each perforation type correspondence are shown in Figure 3.In the embodiment illustrated, each hole 5a, 5b have the cross section of elongation, and run through this carrier in the direction perpendicular to the surperficial 1a of carrier 1.This cross section is preferably even basically in whole carrier.
Hole 5a in the embodiment of Fig. 3 and Fig. 4 and the cross section of 5b are identical elongated shape, but have rotated 90 ° of angles each other.Each Kong Douyou is roughly oval-shaped cross section, and has minimum diameter d1 and d1 ＇, maximum diameter d 2 and d2 ＇ respectively.The minimum diameter d1 of hole 5a is parallel with maximum diameter d 2 ＇ of hole 5b basically, and vice versa.
Minimum diameter d1 and d1 ＇ respectively preferably less than or approximate the thickness D of carrier 1, and for bank money, it can be 50 μ m to 500 μ m, preferably is no more than 150 μ m.Maximum gauge can be bigger basically, and is for example big 1.5 times than minimum diameter at least.
The cross-sectional area of hole 5a and 5b preferably equates.In this case, when from perpendicular to the view direction 7 of the surperficial 1a of carrier 1 facing to light source when the printing opacity direction is watched file, the transmission in two kinds of holes is identical, and the hole shows identical brightness.But when when watching with surperficial 1a off plumb view direction 7 ＇, the light quantity that sees through dissimilar hole 5a and 5b generally can be different, because hole wall is understood the occlusion part beam split.For example, when direction 7 ＇ from Fig. 4 watched file, about 50% in the maximum amount can be passed hole 5a, and hole 5b seems then to be blocked basically.
Usually, higher transmission can be seen when watching perforation pattern, and lower transmission can be seen when watching perpendicular to the view direction of the direction m2 of maximum diameter d 2 perpendicular to the view direction of the direction ml of minimum diameter d1.
By watching file non-perpendicular to surperficial 1a view direction, can use the authenticity of this compliance test result file from least one.The light transmittance of seeing of perforation can be for example made comparisons with the light transmittance of the expection of this view direction.
In order to simplify visual verification, preferably provide to have two kinds of carriers 1, shown in Fig. 3,5 or 6 with perforation of varying cross-section.When watching file non-perpendicular to the direction of surperficial 1a, two groups of perforation generally have different light transmittances, and this makes it possible to check feature by visually contrasting transmission.
For example, when when watching the perforation pattern 5 of Fig. 2 perpendicular to direction ml and the view direction that is not orthogonal to surperficial 1a, what the perforation in the spider generally can be than its outside is better in sight.
In the embodiment of Fig. 3 and Fig. 4, two class hole 5a and 5b have the cross section of mutual half-twist.In the another one embodiment, the hole has difform cross section.But the cross-sectional area of these dissimilar points preferably equates basically, and when when watching perpendicular to the view direction of surperficial 1a, perforation has uniform basically light transmittance like this.The example of two perforation like this is presented among Fig. 5.
In order when certain angle is watched file, to obtain meticulousr effect, can also use having the perforation pattern of point two or more types, that have different cross sections.
If perforation pattern will be used eye-observation, preferably the hole with these types is arranged in the discernible pattern of human eye, for example spider of Fig. 2.
Preferably by the perforation in the laser pulse making perforation pattern 5.In order to make the hole of cross section with elongation, can when apply pulse, move laser beam, perhaps use the several separate pulse side by side in the mode that overlaps in space.
When the dimension of being had a few all is only when direction changes, it is the easiest making perforation pattern, because at this moment can only use the beam deflector that will operate in the drilling process.In the pattern of making like this, porose minimum diameter all identical and be parallel to each other.
Fig. 6 has shown corresponding embodiment, and it has the hole and the circular hole of elongation.The minimum diameter d1 of first kind of hole 5a equates with two diameter d 1 ＇ of second kind of hole 5b.
It is quite difficult making above-mentioned little perforation pattern by pure plant equipment.For fear of wrinkling, must use drilling technique, still, the elongated hole of making type described here by the mode of machine drilling is very difficult.Therefore, the application of elongated hole makes and forges perforation pattern difficulty more by Machine Manufacturing Technology.
And machine-made perforation has more coarse limit, therefore compares with the perforation of making by laser to have higher light scattering.
In order to make the mechanical reproduction difficulty of perforation pattern, the minimum diameter d1 in hole, d1 ＇ should be preferably 150 μ m or littler.
In the embodiment shown here, perforation pattern 5 is used in the bank note, but it also can be used in other similar purposes, for example is used for check, pages of passports or other file that should be difficult to forge.Carrier 1 is preferably paper or flexible plastic.
Though illustrated and described the preferred embodiments of the invention now, it should be clearly understood that to the invention is not restricted to this, can implement and practice differently within the scope of the claims on the contrary.

Claims (17)

1. the method for an authenticating documents authenticity, wherein, described file comprises having a plurality of perforation (wherein, chadless has the cross section of elongation at least for 5a, carrier 5b) (1), and this cross section has minimum and maximum gauge (d1, d1 '; D2, d2 '), it is characterized in that following step: watch file from a surface (1a) the off plumb view direction (7 ') of at least one and carrier (1), then from described perforation (5a, light transmittance 5b) is derived authenticity, (5a 5b) runs through described carrier (1) along the direction perpendicular to described surface in wherein said perforation.
2. the method for claim 1, also comprise step: (5a, light transmittance 5b) and the light transmittance of expection are made comparisons with described perforation.
3. method as claimed in claim 2 wherein, is watched file from least one direction, described direction perpendicular to at least some described perforation (5a, the direction that maximum gauge 5b) (d2, d2 ') parallels.
4. method as claimed in claim 2 wherein, is watched file from least one direction, described direction perpendicular to at least some described perforation (5a, the direction that minimum diameter 5b) (d1, d1 ') parallels.
5. the described method of each claim as described above, wherein, minimum diameter (d1, d1 ') is equal to or less than the thickness (D) of carrier (1).
6. secure file, this secure file comprise carrier (1) and have a plurality of perforation (5a, security feature 5b) on described carrier, wherein, (5a 5b) has the cross section of elongation to the described perforation of small part, this cross section has minimum and maximum gauge (d1, d1 '; D2, d2 '), it is characterized in that this document comprises that at least two have that area equates but (5a, 5b), (5a 5b) runs through described file along the direction perpendicular to the surface (1a) of carrier (1) in described perforation in the perforation of variform cross section.
7. secure file as claimed in claim 6, wherein, described a plurality of perforation comprise first kind of perforation (5a) and second kind of perforation (5b), wherein, the minimum diameter of first kind of perforation (d1) is parallel to the maximum gauge (d2 ') of second kind of perforation.
8. secure file as claimed in claim 6, wherein, described a plurality of perforation (5a, 5b) have the cross section of equal areas, therefore, when watching perpendicular to the view direction on a surface of described carrier (1), (5a 5b) has uniform light transmittance in described a plurality of perforation.
9. secure file as claimed in claim 6, wherein, when when watching with angle of a surperficial off plumb of carrier (1), (5a 5b) forms the discernible transmission pattern of human eye in described perforation.
10. secure file as claimed in claim 6, wherein, (5a 5b) has the uniform cross-sectional area of passing described file in each perforation.
11. as each described secure file in the claim 6 to 10, wherein, described carrier (1) is flexible plastic or paper.
12. secure file as claimed in claim 11, wherein, secure file is the bank note or the part of passport.
13. as each described secure file in the claim 6 to 10, wherein, (5a 5b) has circular cross section and/or arrange with two-dimensional array in some described perforation.
14. as each described secure file in the claim 6 to 10, wherein, minimum diameter (d1, d1 ') is equal to or less than the thickness (D) of carrier (1).
15. as each described safety design in the claim 6 to 10, wherein, the minimum diameter of all perforation (d1, d1 ') all equates.
16. safety design as claimed in claim 15, wherein, all minimum diameters of all perforation (d1, d1 ') all are parallel to each other.
17. as each described safety design in the claim 6 to 10, wherein, maximum gauge (d2, d2 ') is bigger 1.5 times than minimum diameter (d1, d1 ') at least.
CNB028293770A 2002-07-25 2002-07-25 Security document and verification method Expired - Fee Related CN100488782C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2002/002914 WO2004011274A1 (en) 2002-07-25 2002-07-25 Security document and verification method

Publications (2)

Publication Number Publication Date
CN1638975A CN1638975A (en) 2005-07-13
CN100488782C true CN100488782C (en) 2009-05-20

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US (1) US8256683B2 (en)
EP (1) EP1525100B1 (en)
JP (1) JP2005533686A (en)
CN (1) CN100488782C (en)
AT (1) ATE433382T1 (en)
AU (1) AU2002319839A1 (en)
BR (1) BR0212771A (en)
CA (1) CA2494592C (en)
DE (1) DE60232608D1 (en)
ES (1) ES2325315T3 (en)
NO (1) NO329717B1 (en)
UA (1) UA80830C2 (en)
WO (1) WO2004011274A1 (en)

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US20060006236A1 (en) 2006-01-12
WO2004011274A1 (en) 2004-02-05
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US8256683B2 (en) 2012-09-04
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CN1638975A (en) 2005-07-13
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EP1525100B1 (en) 2009-06-10

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